RE: [PATCH] Revert "block: revert back to synchronous request_queue removal"

2020-09-08 Thread Zhao, Haifeng
-...@vger.kernel.org; mcg...@kernel.org; Zhang, ShanshanX ; Jia, Pei P Subject: Re: [PATCH] Revert "block: revert back to synchronous request_queue removal" Hello Haifeng, On Wed, Sep 09, 2020 at 02:11:20AM +, Zhao, Haifeng wrote: > Ming, Christoph, > Could you point out th

Re: [PATCH] Revert "block: revert back to synchronous request_queue removal"

2020-09-08 Thread Ming Lei
Hello Haifeng, On Wed, Sep 09, 2020 at 02:11:20AM +, Zhao, Haifeng wrote: > Ming, Christoph, > Could you point out the patch aimed to fix this issue ? I would like to > try it. This issue blocked my other PCI patch developing and verification > work, > I am not a BLOCK/NVMe expert, wo

RE: [PATCH] Revert "block: revert back to synchronous request_queue removal"

2020-09-08 Thread Zhao, Haifeng
rg; Zhang, ShanshanX ; Jia, Pei P ; Ming Lei Subject: Re: [PATCH] Revert "block: revert back to synchronous request_queue removal" On Tue, Sep 08, 2020 at 03:50:48AM -0400, Ethan Zhao wrote: > From: Ethan Zhao > > 'commit e8c7d14ac6c3 ("block: revert back

Re: [PATCH] Revert "block: revert back to synchronous request_queue removal"

2020-09-08 Thread Christoph Hellwig
On Tue, Sep 08, 2020 at 03:50:48AM -0400, Ethan Zhao wrote: > From: Ethan Zhao > > 'commit e8c7d14ac6c3 ("block: revert back to synchronous request_queue > removal")' introduced panic issue to NVMe hotplug as following(hit > after just 2 times NVMe SSD hotplug under stable 5.9-RC2): I'm pretty s

Re: [PATCH] Revert "block: revert back to synchronous request_queue removal"

2020-09-08 Thread Bart Van Assche
On 2020-09-08 00:50, Ethan Zhao wrote: > From: Ethan Zhao > > 'commit e8c7d14ac6c3 ("block: revert back to synchronous request_queue > removal")' introduced panic issue to NVMe hotplug as following(hit > after just 2 times NVMe SSD hotplug under stable 5.9-RC2): Please fix this in the NVMe drive

[PATCH] Revert "block: revert back to synchronous request_queue removal"

2020-09-08 Thread Ethan Zhao
From: Ethan Zhao 'commit e8c7d14ac6c3 ("block: revert back to synchronous request_queue removal")' introduced panic issue to NVMe hotplug as following(hit after just 2 times NVMe SSD hotplug under stable 5.9-RC2): BUG: sleeping function called from invalid context at block/genhd.c:1563 in_atomic